In this paper, an approach for the estimation of the spectral density based on classical methods from spectral analysis and signal processing [1]}, [2]}
is presented.
Furthermore, we examine the asymptotic behaviour of time-averages of observables on SRH \(S\alpha S\)  processes and derive an ergodic theorem.
This allows us to give an explicit expression for the non-ergodic limit of the finite-dimensional empirical characteristic function of the process \(X\) .
